Menu
We are going to use 8082 for pull from the proxy repo and 8083 for pull and push to the private repo. I had some problems with slightly older versions of Docker, so I strongly suggesting you to start with the version that I’ve tested with, that is 1.12.3. A repository for Docker images that your team creates. Create a new Docker. Create a Secret based on existing Docker credentials. A Kubernetes cluster uses the Secret of docker-registry type to authenticate with a container registry to pull a private image. If you already ran docker login, you can copy that credential into Kubernetes: kubectl create secret generic regcred -from-file=.dockerconfigjson=docker/config.json -type=kubernetes.io/dockerconfigjson. Finally, I gave you a quick example on how to pull a Docker image from Microsoft Container registry to create a SQL Server container using the Docker command line client. In this second part, you will learn in detail about the Docker command line client.
![Cannot Pull Private Repository Using Docker For Mac Cannot Pull Private Repository Using Docker For Mac](/uploads/1/1/9/8/119852981/425949693.jpg)
Table of Contents
Introduction
One common situation I have run into on different projects is how to instruct my Docker containers to automatically clone or pull from a private GitHub repository when they're built. The goal of this tutorial is to pull together various references I found into a single document for what I needed to do which is to spin up a rails app using code in a private repo on GitHub.
In this tutorial we will go through how to acquire an OAuth token from GitHub to access your repositories in an automated fashion and then use that in a Dockerfile to bring up a basic Ruby-on-Rails application using the Phusion Passenger 3.0 webserver.
Create GitHub OAuth Token
Developers have a few methods they can use to access their repositories on GitHub. Using personal access tokens allows you to forgo having to provide a username and password when making a request. This is the recommended approach to automating the synchronization of your code. It is also an easier method than hacking together one of the many SSH key solutions you might find elsewhere on the web.
These instructions assume that you host your repos with GitHub and that you have private repos you would like to pull or clone automatically. While being logged into your GitHub account you can obtain an OAuth token by navigating to Settings --> Applications --> Generate New Token.
Docker Pull Specify Repository
Be aware that when GitHub generates the token it will only show it to you once. When you browse away from the page you will not be able to view the token again therefore it's a good idea to make note of what it is before proceeding onto the Dockerfile steps. If you lose the token you will need to regenerate it. You can also use this interface to revoke tokens.
Create the token so that it has the appropriate scope for what you require. The defaults should be fine for this example.
Dockerfile
Now that you have an OAuth token it's relatively easy to construct the HTTPS URL to pull or clone from your private repo(s). This can be done in the following fashion:
![Docker Docker](/uploads/1/1/9/8/119852981/371468986.png)
The
<token>:x-oauth-basic
is where the magic happens. It should be noted that we are using personal access tokens which are a bit different than registered application tokens. Now, let's turn to our Dockerfile:
In the first section we're instructing Docker to use Phusion's Ruby 1.9.3 image. If you don't have it locally it will be pulled down.
We then clone our desired branch -- in our case docker -- to a new directory
myapp
at the root of the file system. All content is then copied over to the default /home/app
location for the Passenger 3.0 container. The bundle install installs any required gems we may need. Our Nginx configuration is taken from Passenger's Docker documentation, but looks like this:
We also add a few environment configuration files to ensure our Docker link names are exposed in Nginx, too.
Once all that is done
my_init
is ran when the container spins up with 80 and 443 exposed. Conclusion
Cannot Pull Private Repository Using Docker For Mac Free
Hopefully this short tutorial helped you setup automatic GitHub repo pulls or clones using OAuth tokens. In future articles we will dive deeper into connecting our Ruby-on-Rails container to our two DB containers and connecting the DB containers to persistent storage volume containers.